Attempting to repair a flash drive with production tools will permanently delete all data on the device. specific version of the Alcor MPTool compatible with your controller's part number?
Windows Device Manager can only show you basic ID parameters. To view what is actually happening inside the silicon, you must extract the and Controller Part-Number :
Visit a trusted USB repair archive site (such as FlashBoot or USBDev).
Understanding USB Device ID VID 058F PID 1234: A Comprehensive Guide
One of the biggest advantages of the 058F:1234 device is its excellent driver support, as it relies on a standard Windows driver that works across nearly all versions of the OS: usb device id vid 058f pid 1234 full
Very slow transfer speeds; high risk of data loss; prone to firmware corruption; frequently associated with fraudulent capacity ratings. Recommendation: Only use this device for disposable, non-critical data
Based on the USB ID , here is the full breakdown of the device and its proper feature set.
Files written to the drive disappear or become corrupted after a certain point.
This specific ID combination indicates a very common, often generic, USB flash drive that uses a controller from Alcor Micro Corp . Due to their widespread use in inexpensive flash drives, these devices can sometimes become corrupted, "fake" (reporting a larger capacity than they actually have), or simply fail to be recognized properly. Attempting to repair a flash drive with production
The microcode running on the Alcor Micro controller chip (such as the AU6989SN , AU6986 , or AU6988 architectures) has become corrupt. When the software loop fails to map the flash memory translation layer, the controller defaults to a standard bootloader recovery ID ( VID_058F&PID_1234 ) to allow factory-level reflashing tools to communicate with it. 2. Flash Memory NAND Degradation
Below are the proven fixes, ordered from simplest to most advanced.
When a device with these IDs is connected, it generally reports the following hardware profile: Vendor ID (VID): (Alcor Micro Corp.) Product ID (PID): Manufacturer: Product Model: USB Flash Disk / Mass Storage Device Common Controllers: Alcor Micro AU6986, AU6988, or AU6989SN series USB Version: USB 2.0 (High Speed) Common Use Cases and Problems
: A hexadecimal string (e.g., 89A46432 ) that identifies the physical NAND flash wafer inside the drive. 🔧 How to Repair and Flash the USB Drive To view what is actually happening inside the
This specific combination most commonly appears in the following hardware scenarios:
If you're trying to fix a "Write Protected" or "0MB" error, I can help you find the specific AlcorMP repair tool version for your controller. Would you like to know: extract the Flash ID to find the right tool? operating systems are best for running these repair utilities? How to verify if the drive is a "fake" capacity
Do not use generic "driver updater" tools. Instead, get the official driver:
Bus 001 Device 003: ID 058f:1234 Alcor Micro Corp. USB 2.0 Hub Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 9 (Hub) bDeviceSubClass 0 bDeviceProtocol 1 (Single TT) bMaxPacketSize0 64 idVendor 0x058f Alcor Micro Corp. idProduct 0x1234 USB 2.0 Hub bcdDevice 1.00
The operating system sees the controller but cannot access the memory.
0 MB on a 32GB USB stick - Storage Devices - Linus Tech Tips 11 Oct 2014 —